Here's what the excerpt reveals to us about both Godzilla, MUTO and the film's plot:
Godzilla is amphibious
Godzilla is male, not female
The atomic blast from 1954 did not kill Godzilla
Godzilla has been asleep in the Pacific Ocean for decades
The MUTO is an ancient creature, from the same time period that Godzilla existed in
Both Godzilla and the MUTO were natural enemies
Godzilla's atomic ray is consistent with previous films, though a rare occurance. Possibly because it does him harm or depleats his energy. The weapon may be more of a "last attempt" to survive, rather than a casual tool of destruction
Something resurrects the MUTO, which threatens Godzilla's survival
There could be more than one Godzilla in hibernation deep in the ocean
The information revealed from this description opens up our understanding of what Godzilla is and where he came from, as well as an idea of what the MUTO actually is. Be sure to check back often for more updates on Godzilla 2014 and take part in the Godzilla discussions in the Godzilla 2014 forums, here!